ASUS B150 PRO GAMING
1-25
1.8 Onboard LED
1. Standby Power LED (SB_PWR)
The motherboard comes with a standby power LED that lights up to indicate that the
system is ON, in sleep mode, or in soft-off mode. This is a reminder that you should
shut down the system and unplug the power cable before removing or plugging in any
motherboard component. The illustration below shows the location of the onboard LED.
B150 PRO GAMING Standby power LED
SB_PWR
ON
Standby Power
Powered Off
OFF
2. Q LEDs (BOOT_DEVICE_LED, VGA_LED, DRAM_LED, CPU_LED)
Q LEDs check key components (CPU, DRAM, VGA card, and booting devices) in
sequence during motherboard booting process. If an error is found, the corresponding
LED remains lit until the problem is solved. This user-friendly design provides an
intuitive way to locate the root problem within seconds.
B150 PRO GAMING CPU/DRAM/BOOT_DEVICE/VGA LED
CPU_LED
DRAM_LED
VGA_LED
BOOT_DEVICE_LED